TX-168 LCD thermostats heating, ventilating and system(HVAC) commercial, industrial and residential buildings, suitable for 2 or 4-pipe fan coil unit(FCU), on/off the motorized/motorised zone valve.Occupancy function is optional:Save energy automatically by occupancy detection Occupancy sensor determines whether the person has left the room or if they are occupying the room. F guest is occupying the room can do setting according to demand when left then enter energy saving mode automatically The hermostast has 10 60 minutes output delay optional dry contact output can be compatible with most occupancy sensor.Locked by remote controller is optional:Use advanced customized remote controller can realize both remote control and special management Manager can do remote lock and un lock to thermostats One can control multiple suggest come with at least 2 PCS per floor to make sure effective managementFeatures:1. Nice appearance: Large LCD screen with blue backlight2. Wiring box: 86mm*86mm3. High precision & reliable work performance4. Industrial standard, environmental friendly5. Easy to operate TX-1008 remote controller is optional